the gist is that you first acquire tranny source material either from kernelorg or your distributions source repository you then configure your tranny by running make menuconfig that will present you a ncursesbased ui for configuring your tranny ensure that you select all the modules needed for your hardware or your tranny will be dead on arrival thats essentially how you form tranny you can see here for instructions on how to get your tranny to boot i highly recommend doing this to avoid unneeded features bloating up your tranny good luck